Recycled pulp large shaft paper refers to the large shaft paper produced from waste paper. Its main detection performance is as follows:

Strength and tensile properties: to ensure that it is not easy to crack or deform during use. The strength and tensile properties can be evaluated by testing methods such as tensile test and tear test.

Surface flatness: to ensure that there will be no paper lag or quality instability in the process of printing, coating and so on. Its surface flatness can be evaluated by surface flatness test.

Absorbency: In order to absorb ink or paint in printing, coating and other processes. Its water absorption performance can be evaluated by water absorption test.

Break resistance: to ensure that it is not easy to break or damage during transportation and use. The breakage resistance can be evaluated by the breakage resistance test.

What is recycled pulp large shaft paper, what performance needs to be tested?

Gloss: in order to obtain better visual effects in printing, packaging and other fields. Its gloss can be assessed by a gloss test.

Environmental protection: will not cause pollution to the environment. Its environmental performance can be evaluated by environmental protection test.

Adhesive properties: so that it is not easy to fall off or peel off during use. The bonding performance can be evaluated by the bonding performance test.

Degradability: to reduce environmental pollution and waste of resources. The degradability can be evaluated by the degradability test.

Paper thickness: The thickness of recycled pulp large-shaft paper needs to meet the requirements of the product, which can be evaluated by paper thickness test.

Paper moisture content: The moisture content of recycled pulp large-shaft paper needs to meet the requirements of the product, which can be evaluated by paper moisture content test.

What is recycled pulp large shaft paper, what performance needs to be tested?

Method of detection
It is necessary to adopt corresponding test methods and standards according to different performance indexes for the detection of large shaft paper of recycled pulp. The following are some common testing methods for the performance of large shaft paper of recycled pulp:

Strength and tensile properties: Testing methods such as tensile tests and tear tests can be used to evaluate their strength and tensile properties. Tensile test generally uses a multi-functional testing machine, with longitudinal and transverse as the main test direction for testing. The tearing test evaluates the strength of the paper by measuring the tearing force under certain conditions.

Surface flatness: Its surface flatness can be assessed using a surface flatness tester, which evaluates its surface flatness by measuring the unflatness index of the surface of the paper.

Water absorption: A water absorption tester can be used to evaluate its water absorption performance, which measures the amount of water absorbed by the paper to evaluate its water absorption performance.

Breakage resistance: A breakage resistance tester can be used to evaluate its breakage resistance, which evaluates the breakage resistance of the paper by measuring the breakage force under certain conditions.

What is recycled pulp large shaft paper, what performance needs to be tested?

Gloss: Gloss can be assessed using a gloss tester, which measures the intensity of light reflected from a paper to assess its gloss.

Environmental protection: its environmental protection performance can be evaluated by detection means of heavy metals and harmful substances, such as X-ray fluorescence spectrometer, inductively coupled plasma mass spectrometer and other instruments to detect samples.

Bonding properties: The bonding properties can be evaluated by a peel strength tester, which measures the bonding strength between the paper and the bonding material.

Degradability: Methods such as soil burial test can be used to evaluate the degradability of the paper, which is evaluated by burying the paper in the soil and measuring the degradation rate and quality change.

Paper thickness: Instruments such as hand feel thickness meter and electronic thickness meter can be used to measure paper thickness for evaluation.

Paper moisture content: A paper moisture content tester can be used to measure the moisture content of the paper for evaluation.

What is recycled pulp large shaft paper, what performance needs to be tested?

Notes
In the detection of large shaft paper of recycled pulp, the following points should also be paid attention to:

Selection of samples: It is necessary to randomly select samples from well-representative batches for testing, and pay attention to the preservation and handling of samples to avoid affecting the test results.

Control of test conditions: it is necessary to strictly control the test conditions, including temperature, humidity, light and other factors, to avoid the influence of these factors on the test results.

Calibration of test equipment: It is necessary to calibrate test equipment regularly to ensure its accuracy and reliability.

Processing and analysis of data: statistics and analysis of test data are required to determine its scope of conformity and evaluate its product quality.

In short, the detection of recycled pulp large-shaft paper needs to select the corresponding test methods and standards according to different performance indicators, and carry out under strict experimental conditions to ensure product quality and safety.